Home / 72,881,631.63-100,576,854.36-39,842,280

Finding the Fourth Proportional to 72,881,631.63, 100,576,854.36 and 39,842,280

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Solution

The fourth proportional to 72,881,631.63, 100,576,854.36 and 39,842,280 is: 54,982,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,881,631.63 : 100,576,854.36 = 39,842,280 : x
  2. Step 2: Convert to fraction form
    72,881,631.63/100,576,854.36 = 39,842,280/x
  3. Step 3: Cross multiply
    72,881,631.63x = 100,576,854.36 × 39,842,280
  4. Step 4: Simplify right side
    72,881,631.63x = 4,007,211,192,930,341
  5. Step 5: Solve for x
    x = 4,007,211,192,930,341/72,881,631.63
  6. Step 6: Final answer
    x = 54,982,457.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.